Search a number
-
+
148553 = 149997
BaseRepresentation
bin100100010001001001
321112202222
4210101021
514223203
63103425
71156046
oct442111
9245688
10148553
11a1679
1271b75
1352802
143c1cd
152e038
hex24449

148553 has 4 divisors (see below), whose sum is σ = 149700. Its totient is φ = 147408.

The previous prime is 148549. The next prime is 148573. The reversal of 148553 is 355841.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 71824 + 76729 = 268^2 + 277^2 .

It is a cyclic number.

It is not a de Polignac number, because 148553 - 22 = 148549 is a prime.

It is a Duffinian number.

It is a plaindrome in base 9 and base 16.

It is a nialpdrome in base 8.

It is not an unprimeable number, because it can be changed into a prime (148513) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 350 + ... + 647.

It is an arithmetic number, because the mean of its divisors is an integer number (37425).

2148553 is an apocalyptic number.

It is an amenable number.

148553 is a deficient number, since it is larger than the sum of its proper divisors (1147).

148553 is an equidigital number, since it uses as much as digits as its factorization.

148553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1146.

The product of its digits is 2400, while the sum is 26.

The square root of 148553 is about 385.4257386320. The cubic root of 148553 is about 52.9615242288.

The spelling of 148553 in words is "one hundred forty-eight thousand, five hundred fifty-three".

Divisors: 1 149 997 148553